Question: 1. Contrast the term element with compound.
Answer: An element is a single atom, but a compound is several elements combined together. -megan Label the diagram below and define the terms that you labeled. Protons-a positively charged elementary particle that is a fundamental constituent of all atomic nuclei. Electrons-an elementary particle that is a fundamental constituent of matter, having a negative charge. Neutrons-an uncharged elementary particle that has a mass nearly equal to that of the proton and is present in all known atomic nuclei except the hydrogen nucleus. -brandon
5. Explain how radioactive tracers are used in science?
Scientists are able to detect and measure particles and other types of radiation. They can detect radioactive decay by a method known as autoradiography where radiation causes the appearance of dark silver grains in photographic film.
-ashley
6. Explain how the electron distance from the nucleus relates to the amount of energy within that electron shell. Because electrons move through characteristic regions of 3-D space or orbital and each orbital contain 8 electrons. Also, electrons in a shell with a grater average distance from the nucleus have greater energy than those in a shell close to the nucleus. The reason for that is the energy is required to move a negative charge electron father away from the nucleus. -tina
8. Define the following terms a. Chemical bond: the force of attraction holding atoms together b. Covalent bond: Sharing electrons between atoms c. Single covalent bond: when one pair of electrons is shared between two atoms d. Double covalent bond: When two pairs of electrons are shared between two atoms e. Valence electrons: electrons on the outer most shell f. Electronegativity: a measure of an atom’s attraction for shared electrons in chemical bonds g. Non polar covalent bond: A balanced bond of electrons; electrons share equally; no charge h. Polar covalent bonds: A non balanced bond of electrons; electrons shared unequally; charge
-kate
Guided Reading #1
Question: 1. Contrast the term element with compound.Answer: An element is a single atom, but a compound is several elements combined together.
-megan
Label the diagram below and define the terms that you labeled.
Protons- a positively charged elementary particle that is a fundamental constituent of all atomic nuclei.
Electrons- an elementary particle that is a fundamental constituent of matter, having a negative charge.
Neutrons- an uncharged elementary particle that has a mass nearly equal to that of the proton and is present in all known atomic nuclei except the hydrogen nucleus.
-brandon
5. Explain how radioactive tracers are used in science?
Scientists are able to detect and measure particles and other types of radiation. They can detect radioactive decay by a method known as autoradiography where radiation causes the appearance of dark silver grains in photographic film.
-ashley
6. Explain how the electron distance from the nucleus relates to the amount of energy within that electron shell.
Because electrons move through characteristic regions of 3-D space or orbital and each orbital contain 8 electrons. Also, electrons in a shell with a grater average distance from the nucleus have greater energy than those in a shell close to the nucleus. The reason for that is the energy is required to move a negative charge electron father away from the nucleus.
-tina
8. Define the following terms
a. Chemical bond: the force of attraction holding atoms together
b. Covalent bond: Sharing electrons between atoms
c. Single covalent bond: when one pair of electrons is shared between two atoms
d. Double covalent bond: When two pairs of electrons are shared between two atoms
e. Valence electrons: electrons on the outer most shell
f. Electronegativity: a measure of an atom’s attraction for shared electrons in chemical bonds
g. Non polar covalent bond: A balanced bond of electrons; electrons share equally; no charge
h. Polar covalent bonds: A non balanced bond of electrons; electrons shared unequally; charge
-kate